Aluminiumsplaten til anoden er oksidert, og et tynt lag av aluminiumoksid dannes på overflaten med en tykkelse på 5 til 20 mikron, og den hardanodiserte filmen kan nå 60 til 200 mikron. Den anodiserte aluminiumsplaten forbedrer hardheten og slitestyrken, opp til 250-500 kg/mm2, har meget god varmebestandighet, den hardanodiserte filmen har et smeltepunkt på opptil 2320K, utmerket isolasjon, and breakdown resistance The voltage is as high as 2000V, which enhances the anti-corrosion performance. It will not corrode for thousands of hours in ω=0.03NaCl salt spray.

There are a lot of micropores in the thin oxide film layer, which can adsorb various lubricants, suitable for the manufacture of engine cylinders or other wear-resistant parts; the film micropores have strong adsorption capacity and can be colored into various beautiful and bright colors. Non-ferrous metals or their alloys (such as aluminum, magnesium and their alloys, osv.) can be anodized.

Anodized aluminum sheets are widely used in mechanical parts, aircraft auto parts, precision instruments and radio equipment, arkitektonisk utsmykning, machine casings, lamps and lighting, consumer electronics, handicrafts, household appliances, interior decoration, signs, furniture, automotive decoration and other industries.